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SubjectRe: slub-i386-support.patch
On Thu, 10 May 2007 21:03:39 +0100 (BST)
Hugh Dickins <> wrote:

> Just want to report that I've been running SLUB on i386, both in -mm
> and with slub-i386-support.patch applied to 2.6.21-git, and observed
> no problems with it. I'm anxious that it (or an equivalent) go into
> 2.6.22-rc1, i386 being now the last ARCH_USES_SLAB_PAGE_STRUCT holdout.
> In the frenzy over PowerPC, maybe Linus overlooked that i386
> was still not supporting SLUB; and I fear that once people get
> "# CONFIG_SLUB is not set" into their .config, they're less likely to
> switch over to testing CONFIG_SLUB=y - I remain anxious that it see
> as much testing as possible (but under EXPERIMENTAL for 2.6.22, yes).


> Though when I look at the patchset (copied below), I do wonder why
> it puts a quicklist_trim() into i386's cpu_idle() and flush_tlb_mm():
> neither is where I'd expect us to be secretly freeing pages. Ah,
> several arches do it in cpu_idle(): how odd, oh well.

Christoph, could you please check that this is justified?
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